fix: hide ????????? after session terminate (0.3.8)

Persist session_terminated in event details, expose in API, and update Events/Dashboard UI.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/views/DashboardView.vue

@@ -299,7 +299,7 @@
               Обрыв RDS
             </button>
             <button
-              v-if="eventSupportsSessionTerminate(e)"
+              v-if="showEventSessionTerminateButton(e)"
               type="button"
               class="secondary dash-qwinsta-btn"
               :disabled="sessionTerminateLoadingId === e.id"
@@ -342,6 +342,7 @@ import { onMounted, onUnmounted, ref } from "vue";
 
 import {
   apiFetch,
+  ApiError,
   getToken,
   postEventTerminateSession,
   type DashboardSummary,
@@ -353,7 +354,7 @@ import RdgQwinstaModal from "../components/RdgQwinstaModal.vue";
 import { useRdgQwinsta } from "../composables/useRdgQwinsta";
 import { formatServerName } from "../utils/hostDisplay";
 import { hasRdgFlapUi, rdgQwinstaEventId } from "../utils/rdgFlap";
-import { eventSupportsSessionTerminate } from "../utils/sessionActions";
+import { markEventSessionTerminatedInList, showEventSessionTerminateButton } from "../utils/sessionActions";
 
 const { qwinstaLoadingId, qwinstaModal, closeQwinstaModal, runQwinsta, runLogoff } = useRdgQwinsta();
 const sessionTerminateLoadingId = ref<number | null>(null);
@@ -386,8 +387,13 @@ async function runSessionTerminate(event: EventSummary) {
     const res = await postEventTerminateSession(event.id);
     if (!res.ok) {
       window.alert(res.message);
+    } else {
+      markEventSessionTerminatedInList(data.value?.recent_events, event.id);
     }
   } catch (e) {
+    if (e instanceof ApiError && e.status === 409) {
+      markEventSessionTerminatedInList(data.value?.recent_events, event.id);
+    }
     window.alert(e instanceof Error ? e.message : "Ошибка завершения сессии");
   } finally {
     sessionTerminateLoadingId.value = null;